适用：外研版新标准七年级 英语语法加油站 系列微课 现在进行时（三） 泰顺县实验中学 包晶晶
现在分词的构成 run do doing 一般在动词原形后+ing ask asking writing write 以不发音的e结尾的，去e，+ing taking take dance dancing get getting 以重读闭音节结尾,且末尾只有一个辅音字母,双写最后一个辅音字母，再+ing run running swim swimming put putting 特殊变化：lie-lying
He is reading a book. We are writing.
现在进行时的句式
肯定句: 主语+be +V-ing+其它. He is reading a book. We are writing.
否定句: 主语+be+ +V-ing+其它. not He is not reading a book. He is reading a book. We are writing. We are not writing.
? 一般疑问句: 主语+be +V-ing+其它. Be +主语+V-ing+其它 . 肯定回答: Yes,主语 +be. 否定回答: No, 主语 +be +not（缩写）. Is he reading a book? He is reading a book. Yes, he is. / No, he isn’t. We are writing. Yes, we are. / No, we aren’t. Are you writing ?
特殊疑问句: 疑问词+be+主语+V-ing+其它？ What is he doing? He is reading a book. What are you doing? We are writing.
巩固检测 You can do it!
句型转换 1. They are cleaning the house.(否定句) 2. She is buying vegetables.(划线部分提问) 3. He is making cakes. (改成一般疑问句) 肯定回答： 否定回答： 4. We are having lunch. (同上) They are not cleaning the house. What is she buying? Is he making cakes? Yes, he is. No, he isn’t. Are you having lunch? Yes, we are. / No, we aren’t.
谢谢！